Abstract
Photoinduced magnetization (PIM) effect of Hg1-xMnxTe provides an attractive solution for realizing the quantum anomalous Hall effect in quantum wells with a light field. In this paper, the PIM effect of p-type Hg0.74Mn0.26Te single crystal was investigated by power-, polarization- and temperature-dependent photoluminescence (PL) measurements in both reflection and transmission geometries. Giant Zeeman splitting and polarization of PL spectra were observed without an external magnetic field evolving with excitation-power density of the pumping laser and temperature, which were accounted for by the PIM effect. The occurrence of the PIM was qualitatively understandable by the carrier-mediated mean-field theory known as the Zener model. The results indicate that infrared PL measurements with enhanced sensitivity and signal-to-noise ratio can serve as a convenient pathway for clarifying the PIM effect of semimagnetic semiconductors.
| Original language | English |
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| Article number | 155201 |
| Journal | Physical Review B |
| Volume | 94 |
| Issue number | 15 |
| DOIs | |
| State | Published - 5 Oct 2016 |